On the 22th September 2008 I successfully climbed Grande Casse ( Normal Route).
I soloed the entire climb. Weather conditions where good but the night had not been cold enough to refreeze the snow.
The climb was on bare ice, fractured and instable.
I left the hut 3.30am, got at the right base of the glacier tongue using some fixed ropes. Once on the glacier I crossed on the left side to avoid a field of crevasses, headed to the col between the summit and the Pointe Matthews and from there climbed the summit ridge.
Difficulty was higher than expected (PD/AD?).